アプリケーションは基本 container で立ち上げる前提のOS っぽい。便利そうだけど、複雑。 https://coreos.com/ignition/docs/latest/what-is-ignition.html

mysql> CREATE DATABASE `test` DEFAULT CHARSET utf8mb4; ERROR 1290 (HY000): The MySQL server is running with the --super-read-only option so it cannot execute this statement SET GLOBAL super_read_only= 0;